Vault May be Vulnerable to a Denial of Service Through Memory Exhaustion When Handling Large HTTP Requests
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-770.
Summary
HashiCorp Vault and Vault Enterprise 1.12.0 and newer are vulnerable to a denial of service through memory exhaustion of the host when handling large unauthenticated and authenticated HTTP requests from a client. Vault will attempt to map the request to memory, resulting in the exhaustion of available memory on the host, which may cause Vault to crash. Fixed in Vault 1.15.4, 1.14.8, 1.13.12.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| HashiCorp | Vault | 1.12.0 to before 1.15.4 | 1.15.4 | Patch available | CNA |
| HashiCorp | Vault Enterprise | 1.12.0 to before 1.15.4 | 1.15.4 | Patch available | CNA |
| — | github.com/hashicorp/vault (Go) | 1.15.0 to before 1.15.4 | 1.15.4 | Patch available | GHSA-6p62-6cg9-f5f5 |
| — | github.com/hashicorp/vault (Go) | 1.14.0 to before 1.14.8 | 1.14.8 | Patch available | GHSA-6p62-6cg9-f5f5 |
| — | github.com/hashicorp/vault (Go) | 1.12.0 to before 1.13.12 | 1.13.12 | Patch available | GHSA-6p62-6cg9-f5f5 |
- Vault VendorHashiCorp Affected 1.12.0 to before 1.15.4 Fixed in 1.15.4 Patch available CNA
- Vault Enterprise VendorHashiCorp Affected 1.12.0 to before 1.15.4 Fixed in 1.15.4 Patch available CNA
- github.com/hashicorp/vault (Go) Vendor— Affected 1.15.0 to before 1.15.4 Fixed in 1.15.4 Patch available GHSA-6p62-6cg9-f5f5
- github.com/hashicorp/vault (Go) Vendor— Affected 1.14.0 to before 1.14.8 Fixed in 1.14.8 Patch available GHSA-6p62-6cg9-f5f5
- github.com/hashicorp/vault (Go) Vendor— Affected 1.12.0 to before 1.13.12 Fixed in 1.13.12 Patch available GHSA-6p62-6cg9-f5f5
CPE configurations NVD · 8
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:hashicorp:vault:*:*:*:*:*:*:*:* | up to 1.12.0 | Vulnerable | HashiCorp |
| cpe:2.3:a:hashicorp:vault:*:*:*:*:enterprise:*:*:* | up to 1.12.0 | Vulnerable | HashiCorp |
| cpe:2.3:a:hashicorp:vault:*:*:*:*:*:*:*:* | 1.13.0 to before 1.13.12 | Vulnerable | HashiCorp |
| cpe:2.3:a:hashicorp:vault:*:*:*:*:enterprise:*:*:* | 1.13.0 to before 1.13.12 | Vulnerable | HashiCorp |
| cpe:2.3:a:hashicorp:vault:*:*:*:*:*:*:*:* | 1.14.0 to before 1.14.8 | Vulnerable | HashiCorp |
| cpe:2.3:a:hashicorp:vault:*:*:*:*:enterprise:*:*:* | 1.14.0 to before 1.14.8 | Vulnerable | HashiCorp |
| cpe:2.3:a:hashicorp:vault:*:*:*:*:*:*:*:* | 1.15.0 to before 1.15.4 | Vulnerable | HashiCorp |
| cpe:2.3:a:hashicorp:vault:*:*:*:*:enterprise:*:*:* | 1.15.0 to before 1.15.4 | Vulnerable | HashiCorp |
- cpe:2.3:a:hashicorp:vault:*:*:*:*:*:*:*:* Versions up to 1.12.0 Vulnerable ·HashiCorp
- cpe:2.3:a:hashicorp:vault:*:*:*:*:enterprise:*:*:* Versions up to 1.12.0 Vulnerable ·HashiCorp
- cpe:2.3:a:hashicorp:vault:*:*:*:*:*:*:*:* Versions 1.13.0 to before 1.13.12 Vulnerable ·HashiCorp
- cpe:2.3:a:hashicorp:vault:*:*:*:*:enterprise:*:*:* Versions 1.13.0 to before 1.13.12 Vulnerable ·HashiCorp
- cpe:2.3:a:hashicorp:vault:*:*:*:*:*:*:*:* Versions 1.14.0 to before 1.14.8 Vulnerable ·HashiCorp
- cpe:2.3:a:hashicorp:vault:*:*:*:*:enterprise:*:*:* Versions 1.14.0 to before 1.14.8 Vulnerable ·HashiCorp
- cpe:2.3:a:hashicorp:vault:*:*:*:*:*:*:*:* Versions 1.15.0 to before 1.15.4 Vulnerable ·HashiCorp
- cpe:2.3:a:hashicorp:vault:*:*:*:*:enterprise:*:*:* Versions 1.15.0 to before 1.15.4 Vulnerable ·HashiCorp
Remediation
- Fix · CNA Vault (HashiCorp) Fixed in 1.15.4
- Fix · CNA Vault Enterprise (HashiCorp) Fixed in 1.15.4
- Fix · GHSA-6p62-6cg9-f5f5 github.com/hashicorp/vault (Go) Fixed in 1.15.4 Advisory →
- Fix · GHSA-6p62-6cg9-f5f5 github.com/hashicorp/vault (Go) Fixed in 1.14.8 Advisory →
- Fix · GHSA-6p62-6cg9-f5f5 github.com/hashicorp/vault (Go) Fixed in 1.13.12 Advisory →
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
Not affected: 3 products
- OpenShift Pipelines
- Red Hat Openshift Data Foundation 4
- Red Hat build of Apache Camel for Spring Boot 4
Timeline
- 2026-10-02 Threatist record created from CVE-2023-6337
- 2026-10-03 Alias added: GHSA-6p62-6cg9-f5f5
References
Advisory 2
More HashiCorp Vault vulnerabilities
- TI-2024-01904 Vault Cert Auth Method Did Not Correctly Validate Non-CA Certificates CVSS 3.1CRITICAL 9.8
- TI-2022-19053 An issue was discovered in HashiCorp Vault and Vault Enterprise before 1.11.3. CVSS 3.1CRITICAL 9.1
- TI-2020-17874 The official vault docker images before 0.11.6 contain a blank password for a root user. CVSS 3.1CRITICAL 9.8
- TI-2020-10142 HashiCorp Vault and Vault Enterprise 1.4.0 and 1.4.1, when configured with the GCP… CVSS 3.1CRITICAL 9.8
- TI-2026-04407 Vault Vulnerable to Server-Side Request Forgery in ACME Challenge Validation via Attacker-Controlled DNS CVSS 3.1HIGH 8.6
- TI-2025-05421 Arbitrary Remote Code Execution via Plugin Catalog Abuse CVSS 3.1CRITICAL 9.1
Sources
- CVE-2023-6337 · CVE Program
- CVE-2023-6337 · NVD
- FIRST EPSS
- GHSA-6p62-6cg9-f5f5 · GitHub Advisory Database · CC BY 4.0
- CVE-2023-6337 · Red Hat security data · CC BY 4.0
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